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✔ The answer is: The vast majority of high-quality 4-person spa hot tubs come standard with an electric water pump. ✔ And they are equipped with at least one jet pump; some models may also include a circulation pump.

LOVIA SPA 4-person hot tub specifications: • Dimensions: 1810 × 1810 × 770 mm • Dry weight (empty tub): 230 kg • Total weight when filled with water: 1130 kg This means that, in addition to the 230 kg of the tub itself, the water accounts for approximately 900 kg, which is the main component of the spa hot tub's weight.

LOVIA SPA products typically feature a standardized, deeper water level design, resulting in a larger capacity than other brands. Its 1810×1810×770 mm 4-person spa hot tub, with a capacity of approximately 360–430 gallons, fully meets the industry standards for high-end spa hot tubs.

LOVIA SPA's 4-person spa hot tub uses a 3kW heater 1. 110V: Requires approximately 28A, 30–40A circuit recommended 2. 220V: Requires approximately 14A, 16–20A circuit recommended 3. 380V (three-phase): Requires approximately 8A, 10A circuit recommended

Actual heating time for a 4-person spa hot tub + 3kW heater: 6–14 hours (from cold water to 38–40°C) Summer or higher outside temperatures: 5–8 hours Winter or lower temperatures: may require 12–16 hours